“…Tsirbas and Wormald 19 performed 104 endoscopic DCR with mucosal flap preservation and the surgery was successful in 93 cases (89%) which is a similar to ours in group B (with mucosal flap) 90.9% (10/11). Telang et al 29 found that preservation of lacrimal sac and nasal mucosa leads to marsupialization of lacrimal sac onto the lateral nasal wall with success rate of 96%. Gurdeep et al 30 in their study of powered endoscopic DCR with mucosal flaps achieved a success rate of 91.66%.…”